3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Why am I getting these bumps and whiskers on my CR-10S Pro V2 prints? (i.imgur.com)

submitted 2 years ago by [email protected] to c/[email protected]

14 comments fedilink hide all child comments

I've been repairing a Creality CR-10S Pro V2 and can't figure out this persistent oddity. It prints spiral vases and benchies flawlessly, but regular 3D prints often have these pronounced bumps and thick whiskers sticking out. I think it's more than just Z seam blobs, I'm wondering if it's an issue with the wipe settings not working well in PrusaSlicer...

Here's another example of the issue: https://i.imgur.com/ZHssQWI.jpg

I'm using Kaaber transparent PETG, printing at 215/210 nozzle and 75 bed. I know this seems cool for PETG, but this brand tends to melt and ooze at anything hotter.

Here are my PrusaSlicer retraction settings, they are the default for this printer:

https://i.imgur.com/RqrltUL.jpg

I tried slightly bumping the retraction to 6.5mm and 65mm/s, but it made no difference.

Any ideas what would cause this? I'm getting it while trying to print many parts of the honeycomb storage wall off printables.

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[–] [email protected] 1 points 2 years ago

As an update, changing to a different brand of petg (polar filament) fixed it. I also changed to 230 nozzle and 70 bed, which is the recommended temp from the manufacturer for this new petg... the old transparent petg (from Kaaber) couldn't handle these temperatures without liquefying and sucking on overhangs/bridges.